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Dow DOWSIL 670 Fluid is a high-performance film-forming silicone in the DOWSIL color cosmetic silicone series, designed for color cosmetic formulations. With precise compound ratio, it features excellent film-forming, long-wear and water-resistant properties, significantly enhancing cosmetic adhesion, shine and wear performance, a core functional component for long-wear cosmetic products.
Rapid Film-Forming & Long-Wear - Rapidly forms uniform film layer, extending cosmetic wear time
Strong Water & Sweat Resistance - Resists water and sweat erosion, maintains complete makeup
High Gloss Texture - Enhances cosmetic surface shine, presents delicate makeup effect
Excellent Adhesion - Improves powder-skin fit, not easy to cake or mottle
Low Cyclotetrasiloxane Content - Cyclotetrasiloxane<1%, meets high-end cosmetic formulation requirements
Color Cosmetics - Liquid foundations, concealers, enhancing wear and water resistance
Lip Cosmetics - Lipsticks, lip glosses, improving film-forming and shine
Eye Cosmetics - Eyeshadows, eyeliners, enhancing adhesion and anti-smudge effect
Setting Products - Setting sprays, loose powders, optimizing film-forming and wear performance
Sun Care Cosmetics - Sunscreen foundations, cushions, synergistically improving water and sweat resistance
| Brand | DOW |
| Product Type | Silicone Blend (Cyclopentasiloxane/Polyphenylsilsesquioxane) |
| INCI Name | Cyclopentasiloxane (and) Polyphenylsilsesquioxane |
| Cyclotetrasiloxane Content | <1% |
| Kinematic Viscosity (25℃) | 200 cSt |
| Refractive Index | 1.4197 |
| Solid Content | 50% |
Q1: What is the primary function of DOWSIL 670 Silicone Oil in industrial formulations?
A: DOWSIL 670 Silicone Oil is a low-viscosity, non-reactive polydimethylsiloxane fluid primarily used as a surface modifier and processing aid to improve slip, leveling, and substrate wetting in coatings, inks, adhesives, and sealants.
Q2: Is DOWSIL 670 compatible with common organic solvents and polymer systems?
A: Yes — DOWSIL 670 exhibits broad compatibility with hydrocarbon solvents, esters, ketones, and many acrylic, polyester, epoxy, and polyurethane resin systems. Compatibility testing under actual formulation conditions is recommended to confirm stability and performance.
Q3: How should DOWSIL 670 be incorporated into a formulation to avoid surface defects?
A: It is typically added during the let-down or post-addition stage under moderate agitation. To minimize foaming or cratering, avoid high-shear dispersion and ensure thorough but gentle mixing. Dosage depends on formulation requirements but generally ranges from 0.1% to 2% by weight of the total system.
Q4: Does DOWSIL 670 provide long-term stability in cured films or coatings?
A: As a non-reactive silicone oil, DOWSIL 670 remains physically dispersed within the matrix and may migrate over time depending on film morphology and environmental conditions. Its effect on surface properties is often most pronounced initially, though it contributes consistently to handling and appearance during processing.
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